Physics · Surface Tension
Two water drops each of radius 'r' coalesce to form a bigger drop. If 'T' is the surface tension, the surface energy released in this process is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14πr2T [√2 - 1]
- 24πr2T [1 + √2]
- 34πr2T [2 - 21/3]
- 44πr2T [2 - 22/3]✓
Correct answer
4πr2T [2 - 22/3]
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